Pr(Nd)-Fe-Co-Nb-Cu-Si-B系急冷薄帯並びにそれらのボンド磁石の磁気特性

• 山元 洋

  明治大学　理工学部

• 品川 洋輝

  明治大学　理工学部

書誌事項

タイトル別名

• Magnetic Properties of Melt-Spun Pr(Nd)-Fe-Co-Nb-Cu-Si-B System Ribbons and their Bonded Magnets
• Pr Nd Fe Co Nb Cu Si Bケイ キュウレイ ハクタイ ナラビニ ソレラ ノ ボンド ジシャク ノ ジキ トクセイ

抄録

Melt-spun ribbons of Pr-Fe-Co-Nb-Cu-Si-B system alloys were prepared by single roller rapid-quenching method. Effects of composition,wheel velocity and heat-treatment on magnetic properties were investigated. The optimum preparation conditions of compounds were as follows: composition Pr₉Fe_68.5Co₁₀Nb₁Cu_0.5Si_0.5B_10.5; wheel velocity 12.5 m/s; heat-treatment 625 °C for 5 min. Magnetic properties obtained were (BH)_max = 121.8 kJ/m³, J_r = 0.90 T, H_cJ = 898.7 kA/m, and H_cB = 509.0 kA/m. Temperature coefficients of J_r and H_cJ of the ribbons of Pr₉Fe_68.5Co₁₀Nb₁Cu_0.5Si_0.5B_10.5 alloy were α(J_r)_ave = -0.034 %/°C and α(H_cJ) = -0.290 %/°C, respectively. The value of (BH)_max for the isotropic Pr₉Fe_68.5Co₁₀Nb₁Cu_0.5Si_0.5B_10.5 bonded magnet prepared by using ribbons annealed at 625 °C for 5 min is 84.4 kJ/m³. Irreversible loss of the bonded magnet is -2.74 % (at 125°C).

収録刊行物

• 電気学会論文誌．　Ａ

  電気学会論文誌．　Ａ 126 (12), 1249-1254, 2006

  一般社団法人 電気学会

キーワード

• 急冷薄帯
• 永久磁石
• 交換スプリング磁石
• ボンド磁石
• 温度係数
• 不可逆減磁率

詳細情報

• CRID: 1390001204593483904
• NII論文ID: 10018410810
• NII書誌ID: AN10136312
• DOI: 10.1541/ieejfms.126.1249
• ISSN: 13475533
• ISSN: 03854205
• NDL書誌ID: 8592825
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8592825
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms/126/12/126_12_1249/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可